[INFO] cloning repository https://github.com/maxsmoke/advent2019
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/maxsmoke/advent2019" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaxsmoke%2Fadvent2019", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaxsmoke%2Fadvent2019'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 550028178a24e55a8007c7d2b0d38d7e40d66b35
[INFO] testing maxsmoke/advent2019 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaxsmoke%2Fadvent2019" "/workspace/builds/worker-90/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-90/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/maxsmoke/advent2019 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/maxsmoke/advent2019
[INFO] finished tweaking git repo https://github.com/maxsmoke/advent2019
[INFO] tweaked toml for git repo https://github.com/maxsmoke/advent2019 written to /workspace/builds/worker-90/source/Cargo.toml
[INFO] crate git repo https://github.com/maxsmoke/advent2019 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0d200e20acde30f1f3d11f132c855e0ad85ae4a8b47d43da1e0163d7afce7cb3
[INFO] running `Command { std: "docker" "start" "-a" "0d200e20acde30f1f3d11f132c855e0ad85ae4a8b47d43da1e0163d7afce7cb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d200e20acde30f1f3d11f132c855e0ad85ae4a8b47d43da1e0163d7afce7cb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d200e20acde30f1f3d11f132c855e0ad85ae4a8b47d43da1e0163d7afce7cb3", kill_on_drop: false }`
[INFO] [stdout] 0d200e20acde30f1f3d11f132c855e0ad85ae4a8b47d43da1e0163d7afce7cb3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6790c5f9b1035980b939362ac671892cba1e094a81ce46376aed68bc585df355
[INFO] running `Command { std: "docker" "start" "-a" "6790c5f9b1035980b939362ac671892cba1e094a81ce46376aed68bc585df355", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling advent v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `low`
[INFO] [stdout]   --> src/problems/d4p2.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let low = 353_096;
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_low`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `high`
[INFO] [stdout]   --> src/problems/d4p2.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let high = 843_212;
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_high`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `descends`
[INFO] [stdout]   --> src/problems/d4p2.rs:52:4
[INFO] [stdout]    |
[INFO] [stdout] 52 | fn descends(digits: Vec<u8>) -> bool {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/utils/mod.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |         &instruction.push(dir);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 59 |         let _ = &instruction.push(dir);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.54s
[INFO] running `Command { std: "docker" "inspect" "6790c5f9b1035980b939362ac671892cba1e094a81ce46376aed68bc585df355", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6790c5f9b1035980b939362ac671892cba1e094a81ce46376aed68bc585df355", kill_on_drop: false }`
[INFO] [stdout] 6790c5f9b1035980b939362ac671892cba1e094a81ce46376aed68bc585df355
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bf53f083495b2dfcf9273a0b30a8758396b9226a86b1f4d3b00c3ebfc0e17be3
[INFO] running `Command { std: "docker" "start" "-a" "bf53f083495b2dfcf9273a0b30a8758396b9226a86b1f4d3b00c3ebfc0e17be3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: unused variable: `low`
[INFO] [stdout]   --> src/problems/d4p2.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let low = 353_096;
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_low`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling advent v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `high`
[INFO] [stdout]   --> src/problems/d4p2.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let high = 843_212;
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_high`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `descends`
[INFO] [stdout]   --> src/problems/d4p2.rs:52:4
[INFO] [stdout]    |
[INFO] [stdout] 52 | fn descends(digits: Vec<u8>) -> bool {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/utils/mod.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |         &instruction.push(dir);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 59 |         let _ = &instruction.push(dir);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `low`
[INFO] [stdout]   --> src/problems/d4p2.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let low = 353_096;
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_low`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `high`
[INFO] [stdout]   --> src/problems/d4p2.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let high = 843_212;
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_high`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `descends`
[INFO] [stdout]   --> src/problems/d4p2.rs:52:4
[INFO] [stdout]    |
[INFO] [stdout] 52 | fn descends(digits: Vec<u8>) -> bool {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/utils/mod.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |         &instruction.push(dir);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 59 |         let _ = &instruction.push(dir);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "bf53f083495b2dfcf9273a0b30a8758396b9226a86b1f4d3b00c3ebfc0e17be3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf53f083495b2dfcf9273a0b30a8758396b9226a86b1f4d3b00c3ebfc0e17be3", kill_on_drop: false }`
[INFO] [stdout] bf53f083495b2dfcf9273a0b30a8758396b9226a86b1f4d3b00c3ebfc0e17be3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d559813fbd500d2aafdad262edac47b703c2f86befbee2e66994f8a501aa70e9
[INFO] running `Command { std: "docker" "start" "-a" "d559813fbd500d2aafdad262edac47b703c2f86befbee2e66994f8a501aa70e9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused variable: `low`
[INFO] [stderr]   --> src/problems/d4p2.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let low = 353_096;
[INFO] [stderr]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_low`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `high`
[INFO] [stderr]   --> src/problems/d4p2.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let high = 843_212;
[INFO] [stderr]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_high`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `descends`
[INFO] [stderr]   --> src/problems/d4p2.rs:52:4
[INFO] [stderr]    |
[INFO] [stderr] 52 | fn descends(digits: Vec<u8>) -> bool {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> src/utils/mod.rs:59:9
[INFO] [stderr]    |
[INFO] [stderr] 59 |         &instruction.push(dir);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 59 |         let _ = &instruction.push(dir);
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `advent` (lib) generated 4 warnings
[INFO] [stderr] warning: `advent` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.24s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/advent-4727d08adbb8fa2d)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/main-929bc98e2211c7c4)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests advent
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d559813fbd500d2aafdad262edac47b703c2f86befbee2e66994f8a501aa70e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d559813fbd500d2aafdad262edac47b703c2f86befbee2e66994f8a501aa70e9", kill_on_drop: false }`
[INFO] [stdout] d559813fbd500d2aafdad262edac47b703c2f86befbee2e66994f8a501aa70e9